Constructional material



Patented Jan. 13, 1931 UNITED'LISTATES' PATENT oFFIce ALBERT o. rrsonnn, or cnroeeo, ILLINOIS, A'SSIGNOR: 'r'o THE rHILIr CAREY MANU- rnc'runnve COMPANY, A CORIEORATION oroHIo oonsrrtncrrouan MATERIAL No Drawing." Application filed August 15,1927, Serial No. 213,184, Renewed July 14, 1930.

This invention relates to constructional material, such as, roofing material; insulating mlgterial, tapes, shingles, packing and the li e.

The object of my present invention is to provide such constructional materials with an adhesive coating which is normally sticky or tacky to the touch and which lastingly maintains this mastic conditi in whereby the material. maybe packed and stored for long' periods of time without losing its tackiness and may be transported to its place of installation and used in such tacky condition without further treatment. v

A further object of my invention resides in the application of this normally lastingly adhesive, sticky to the touch, to sheets or strips of carrier material, hereinafter called vehicles, so that when rolled into package 9 form or placed face to face in contact with a similar sheet for packing and storing and transportation, they may be unrolled or pulled apart readily without tearing or dam aging, and can be installed in tacky condi- 5 tion; in this instance the tacky coating permits the facile separation of the contacting vehicle surfaces, the line of cleavage passing through the mastic itself. The vehicle thus provided with a lastingadhesive, mastic coat- 9 ing is particularly adapted to act as a packing for various types of installation. not only because of the waterproofing quality of the mastic but also because of its pronounced and lasting quality of adhesiveness and further because of its plasticity.

A further object of my invention resides in saturating a vehicle with a slow-drying. viscous adhesive, such for example as a bituminous substance,preferably a high melting point bituminous substance, combined with an oil or combination of oils.

In the present invention the vehicle may consist of sheets, strips, or slabs of tar paper, felt. fabric, fibers or other preferred material.

If preferred, the saturant of the vehicle may be a slow-drying adhesive. Gilsonite or other more bituminous substances may be used in varying proportions (for example, from 10 to 20 per cent) with a non-drying oil such as castor oil (90 to 80 per cent). If a blown castor oil is used, the proportion may range as high as 95 per cent of blown castor oil with 5 per cent of bitumen, g-ilsonite, Texas, or Trinidad. It may be necessary in some cases to heat under pressure in order tosecure union. It will be understood, of course, that the percentages referred to are merely illustrative and will vary under varying conditions. Other oils and other bituminous substances may be used, in which cases the proportions will be subject to considerable variation. For instance, 15 per cent of bitumen, per cent of castor oil and 10. per cent of rape-seed oil'may be united bv gradual heating. The saturant may also be a combination; of two or more of the following' substances: cottonseed oil. cotton-seed oil foots, or pitch. and semi-liquid bituminous substances of various consistencies.

The saturant maybe the combination of a bituminous substance and a vegetable oil heated and combined at high temperature producing a viscous saturant. Gilsonite, Texas or other high melting bituminous substances may be used in varying proportions from 10 to 20 percent, and a viscous oil. slich as castor. where union with other oils is not desirable to per cent. If ablown castor oil is used the proportions mav be as high as 5 per cent bitumen. QllSOIllte, Texas or Trinidad and per cent blown castor oil. It may be necessary in some cases to heatunder pressure in order to secure union.

- The coating with which the vehicle is thus saturated on either one or. both sides preferably comprises a slow-drying, tacky bituminous substance or combination of two or more, which approximates the following specifications, or may be more or less fluid.

I be below 7 .0.

-2. The susceptibility factor should be as low as possible, preferably under 25.

1. The consistency at 77 degrees F. should '3. The ductility at 77 degrees F. should be as high'as possible and preferably over 25 centimeters.

4. Fusing point by K & S method should be between 80 degrees and 100 degrees F.

5. It should appear tacky andadhesive at I August, 1927.

normal temperature and retain this property as long as possibleon exposure to air.

This formula is merely a standard and other formulas more or less fluid may be used with or without asuitable filler as a flow retarder, or the flow tendency. may be normally sticky to the touch and lastingly adhesive.

4. constructional material comprising a vehicle saturated with fifteen per cent bltuminous substance, seventy-five per cent castor oil and ten' per cent rape-seed oil, unitedby radual heating, and coated with a waterproo ng mastic, normally sticky to the touch and lastingly adhesive.

Signed at Chicago, Illinois, this 9th day of ALBERT C. FISCHER.

stopped by using a non-flowing gummy substance in combination.

It will be understood that my invention contemplates constructional material, the adhesiveness of which serves to hold said maface of one sheet will be placed incontact with the non-adhesive surface of another sheet. The adhesive or mastic will cause a union with non-adhesive surfaces to which it isapplied, which union may be made very excellent by means of rolling and which will improve in the course of time.

It will also be understood that if it Shame;

be found that the adhesive surface of a sheet shouldbecome dried out, a solvent such as toluol, benzol, kerosene, or cotton oil, may

be used to bring the-sheet back into adhesive state.

The subject matter of this application has beenwithdrawn from my prior patent, No. 1,550.310, issued 'August 18, .1925.

Iclaim: T v 1 1. constructional material comprising a vehicle saturated with a slow-drying adhesive composed of, a bituminous substance and a non-drying oil, said saturated vehicle being coated with a waterproofing, mastic substance, normally sticky to the touch and lastingly adhesive.

2. constructional material comprising a vehicle saturated with highmelting point bituminous materialfj-and a viscous: oil, said saturated vehicle being icoate'd witha waterproofing, mastic substance, normally sticky to the touch and lastingly adhesive;

3. Constructional .material comprising a vehicle saturated with a composition ofbituminous material and a non-drying oil, and coated with a waterproofing, mastic, 

